| 1 | // Boost.Range library |
|---|---|
| 2 | // |
| 3 | // Copyright Neil Groves 2010. Use, modification and |
| 4 | // distribution is subject to the Boost Software License, Version |
| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
| 7 | // |
| 8 | // |
| 9 | // For more information, see http://www.boost.org/libs/range/ |
| 10 | // |
| 11 | #include <boost/range/algorithm_ext/is_sorted.hpp> |
| 12 | |
| 13 | #include <boost/test/test_tools.hpp> |
| 14 | #include <boost/test/unit_test.hpp> |
| 15 | |
| 16 | #include <boost/range/iterator.hpp> |
| 17 | #include <algorithm> |
| 18 | #include <list> |
| 19 | #include <vector> |
| 20 | |
| 21 | namespace |
| 22 | { |
| 23 | template< class Container > |
| 24 | void test_is_sorted_impl() |
| 25 | { |
| 26 | Container ascending; |
| 27 | Container descending; |
| 28 | |
| 29 | // Empty ranges are regarded as sorted against any predicate. |
| 30 | BOOST_CHECK( boost::is_sorted(ascending) ); |
| 31 | BOOST_CHECK( boost::is_sorted(ascending, std::less<std::size_t>()) ); |
| 32 | BOOST_CHECK( boost::is_sorted(ascending, std::greater<std::size_t>()) ); |
| 33 | |
| 34 | for (std::size_t i = 0; i < 10; ++i) |
| 35 | { |
| 36 | ascending.push_back(i); |
| 37 | descending.push_back(9 - i); |
| 38 | } |
| 39 | |
| 40 | BOOST_CHECK( boost::is_sorted(ascending) ); |
| 41 | BOOST_CHECK( !boost::is_sorted(descending) ); |
| 42 | BOOST_CHECK( !boost::is_sorted(ascending, std::greater<std::size_t>()) ); |
| 43 | BOOST_CHECK( boost::is_sorted(descending, std::greater<std::size_t>()) ); |
| 44 | } |
| 45 | |
| 46 | void test_is_sorted() |
| 47 | { |
| 48 | test_is_sorted_impl< std::vector<std::size_t> >(); |
| 49 | test_is_sorted_impl< std::list<std::size_t> >(); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | boost::unit_test::test_suite* |
| 54 | init_unit_test_suite(int argc, char* argv[]) |
| 55 | { |
| 56 | boost::unit_test::test_suite* test |
| 57 | = BOOST_TEST_SUITE( "RangeTestSuite.algorithm_ext.is_sorted"); |
| 58 | |
| 59 | test->add( BOOST_TEST_CASE( &test_is_sorted ) ); |
| 60 | |
| 61 | return test; |
| 62 | } |
| 63 |